J!Y. 8. 2105 1 :34PM Ci'V OF CHANDLER ENVINNMENTA! 

FACSIMILE TRANSMITTAL. 

DATE: June 8,2005 

TO: Dan Blair, GRIC Air Programs 

FROM: Jim Weiss, Environmental Program Manager 

PHONE NUMBER: 480 782-2377 

FAX Number: 480 782-2382 

RE: TIP Regulation Proposal. 

FAX NUMBER: 1 520 562-2245 

PAGES + COVER: 3 

COMMENTS: Attached is a drafi proposal for changes to the wording in the De Minimis 

Exemptions portion of the draft Part I1 regulations. X have also included 

the language that Maricopa County uses for this type of exemption. 

Maricopa County gives an exemption up to 500 hours total. X think we 

really are talking about what the intentional use of the generator is without 

consideration of the duration of the emergency itselc since that cannot be 

controlled by us. Review of the current testing schedules and possible 

other performance tests that might be required, it appears that a limit of 

200 hours per year would be acceptable. 1 see no reason at this time to go 

all the way up to the 500 hour limit included in the Maricopa County rule. 

Please look at the proposal and give me your thoughts. Thaaks for your 

time. 

Jim Weiss (480 782-2377) 
Jun 8. 2005 1 :3Lol4 CITY OF CHANDLER ENVROfiMEI4TAL /I. 

Jim Weiss, City of Chandler, 6/8/2005 

GlUC TIP Regulations 

(03/01/05) 

Recommended Changes to Part 11 Pennit Requirement 

Part TI, 2.1, C, 2, c 

1. Stationary internal combustion engines that: 

1) have a rating less than 250 horsepower output, 

2) have a rating greater tlxm 250 horsepower output but are operated less than 

- 200 hours per calendar year, or 

3) are used solelv as a source of standby power or for emergency purposes md, 

are operated routinely for less than 200 hours per calendar year for testing 

purposes. 
Jun. 8. 2005 1 :34PM CITY OF tHANDLiR ENVIRONMENTAL 

(a) Internal combustion engines with a manufacturer's maximum 

continuous rating of 50 horsepower or less or a maximum 

accumulative rating of 250 horsepower or less for engines 

operated at or below 500 hours per year for routine testing 

and emergency standby operation for each internal 

combustion engine and provided such source demonstrates 

that the. potential emissions at 500 hours of operation each of 

all internal combustion engines do not exceed 4,000 pounds 

of nitrogen oxides or carbon monoxide per year as evidenced 

by an installed hour meter or written usage records maintained 

by the operator; and 

(i) Are only used for power when normal power line service 

(ii) Are only used for the emergency pumping of water. 

(c) Engines used to propel motorized vehicles. 

Id) Gas turbines wdh a makimum heat input at IS0 Standard Day 

Conditions of less than 3,000,000 BTU (3,162,000 kilojoules) 

per hour fired exclusively with natural gas andfor liquefied 

petroleum gas. 

(e) Portable internal combustion engines used on a temporary 

basis of no more than 30 days per calendar year at any one 

facility. 

(6) Food Equipment: 

(a) Equipment, excluding boilers, used in eating establishments or 

other retail establishments for the purpose of preparing food 

for human consumption. 

(b) Bakeries: 

(i) Mixers and blenders used in bakeries where the 

products are edible and intended for human 

consumption. 

(ii) Ovens at bakeries whose total production is less than 

10,000 pounds (4,535 kg) per operating day.